Follow Slashdot stories on Twitter


Forgot your password?

Graphene Membranes Superpermeable to Water 292

Dr Max writes "Not only is graphene the strongest, thinnest and best conducting material known to man, it is now shown to have superpermeability with respect to water as well. This allows a membrane made with graphene to pass water right through it (PDF), while another atom or molecule (even helium) gets blocked. 'The properties are so unusual that it is hard to imagine that they cannot find some use in the design of filtration, separation or barrier membranes and for selective removal of water,' said one of the researchers."
This discussion has been archived. No new comments can be posted.

Graphene Membranes Superpermeable to Water

Comments Filter:
  • by Bill Hayden (649193) on Friday January 27, 2012 @10:33AM (#38839757) Homepage
    No, just as a floor wax at this point.
  • by swb (14022) on Friday January 27, 2012 @10:35AM (#38839777)

    Lets all the delicious moisture through, blocks the stuff you want blocked???

  • by Belladora (1983922) on Friday January 27, 2012 @10:44AM (#38839869)
    What about the Water Memory []? Does this membrane erase all this information or is a there a mechanism to determine which information to be deleted? Would be an invaluable Material for all that homeopathy stuff...
  • by Anonymous Coward on Friday January 27, 2012 @11:02AM (#38840085)

    He's not spreading FUD. Pure H2O is possibly the most corrosive chemical in the universe and IS certainly the most corrosive chemical in the known universe. The second the stuff hits your mouth it'll leech all the minerals from your teeth. God only know what it would do to the soft tissues, but you can be certain the sodium will be gone and the cell membranes will collapse due to the saline imbalance. Nerves would certainly be rendered useless in the vicinity of the water contact as well. It would literally be safer to drink lye.

    I remember in college a problem we had in the physics department, they were using super clean water because they needed to minimize diffraction through it, and within a couple hours the vessel holding the water shattered because the water had sucked all the minerals out of the glass.

    Don't underestimate the power of the hydrogen bond.

  • by Rogerborg (306625) on Friday January 27, 2012 @11:55AM (#38840851) Homepage

    Fresh water, salt, AND anchovies.

    And mermaids. You ever had sex with a mermaid? Blows your mind, man. I can't even begin to imagine what it would be like to do a live one.

Keep the number of passes in a compiler to a minimum. -- D. Gries